A nonlinear exact disturbance observer inspired by sliding mode techniques

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Inspired by sliding mode techniques, a nonlinear exact disturbance observer is proposed. The disturbance and its derivatives up to the second order are assumed to be bounded. However, the bounds of the disturbance and its derivatives are unknown, and they are adaptively estimated online during the observation of the disturbances. The exact convergence of the disturbance observer to the genuine disturbance is assured theoretically. The convergence speed of the disturbance estimation error is controlled by design parameters. The proposed method is robust to the type of disturbance and is easy to be implemented. Computer simulation results show the superiority and effectiveness of the proposed formulation.

Original languageEnglish
Article number651601
JournalMathematical Problems in Engineering
Volume2015
DOIs
Publication statusPublished - 2015

Fingerprint

Derivatives
Error analysis
Computer simulation

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)

Cite this

A nonlinear exact disturbance observer inspired by sliding mode techniques. / Chen, Xinkai.

In: Mathematical Problems in Engineering, Vol. 2015, 651601, 2015.

Research output: Contribution to journalArticle

@article{efb2f3545fab49858dd09c3df2b5e95e,
title = "A nonlinear exact disturbance observer inspired by sliding mode techniques",
abstract = "Inspired by sliding mode techniques, a nonlinear exact disturbance observer is proposed. The disturbance and its derivatives up to the second order are assumed to be bounded. However, the bounds of the disturbance and its derivatives are unknown, and they are adaptively estimated online during the observation of the disturbances. The exact convergence of the disturbance observer to the genuine disturbance is assured theoretically. The convergence speed of the disturbance estimation error is controlled by design parameters. The proposed method is robust to the type of disturbance and is easy to be implemented. Computer simulation results show the superiority and effectiveness of the proposed formulation.",
author = "Xinkai Chen",
year = "2015",
doi = "10.1155/2015/651601",
language = "English",
volume = "2015",
journal = "Mathematical Problems in Engineering",
issn = "1024-123X",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - A nonlinear exact disturbance observer inspired by sliding mode techniques

AU - Chen, Xinkai

PY - 2015

Y1 - 2015

N2 - Inspired by sliding mode techniques, a nonlinear exact disturbance observer is proposed. The disturbance and its derivatives up to the second order are assumed to be bounded. However, the bounds of the disturbance and its derivatives are unknown, and they are adaptively estimated online during the observation of the disturbances. The exact convergence of the disturbance observer to the genuine disturbance is assured theoretically. The convergence speed of the disturbance estimation error is controlled by design parameters. The proposed method is robust to the type of disturbance and is easy to be implemented. Computer simulation results show the superiority and effectiveness of the proposed formulation.

AB - Inspired by sliding mode techniques, a nonlinear exact disturbance observer is proposed. The disturbance and its derivatives up to the second order are assumed to be bounded. However, the bounds of the disturbance and its derivatives are unknown, and they are adaptively estimated online during the observation of the disturbances. The exact convergence of the disturbance observer to the genuine disturbance is assured theoretically. The convergence speed of the disturbance estimation error is controlled by design parameters. The proposed method is robust to the type of disturbance and is easy to be implemented. Computer simulation results show the superiority and effectiveness of the proposed formulation.

UR - http://www.scopus.com/inward/record.url?scp=84930649570&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930649570&partnerID=8YFLogxK

U2 - 10.1155/2015/651601

DO - 10.1155/2015/651601

M3 - Article

VL - 2015

JO - Mathematical Problems in Engineering

JF - Mathematical Problems in Engineering

SN - 1024-123X

M1 - 651601

ER -